Logical Facts 2010 Visit us for the bank of logical facts, we can say that it is a kind system that we use to construct an argument from observation and known facts. We can use logical reasoning to make assumptions, through known facts. A very popular phrase that depicts logic is this: Every man is mortal, Socrates is a man, therefore Socrates is mortal. Logic is obviously used everywhere, at work, when we are learning a new language, etc. etc. Now something that you do not realize normally, is that your inference can be wrong even though it seems that the evidence you know concurs it to be true.so you really need to have its exposure inorder to excel in the real world!